Periodic Hermite spline interpolants on an equidistant lattice are represented by the Bézier technique as well as by the B-spline method. Circulant matrices are used to derive new explicit formulas ...
Mathematics of Computation, Vol. 31, No. 139 (Jul., 1977), pp. 733-737 (5 pages) An attainable bound for the infinity norm of the inverse of a whole class of symmetric circulant Toeplitz matrices is ...